Argentina Geography The Andes mountains
Argentina Geography
The relief of Argentina is mainly driven by strong opposition from the great plains to the east and the Andes to the West.
This had its origin in Mezones orogenic movements, dislocated by subsidence, uplift and eruptions, earthquakes and active volcanism attest even fragility. Extended lengthwise in a north south along the border with Chile, the Relief of Argentina in the Andes region offers a variety of aspects. In the far north, is the tip of Atacama, a vast desert plateau of 4000 meters, passing through the mountains that exceed 5000 meters, and numerous closed depressions called salt lakes. This stunning desert, dominated by volcanoes like Llullaillaco of 6723 meters in height, and shared with Chile, loses altitude southward to make way for some older saws and uniform cross-cut by narrow valleys, called streams, which serve as step natural between the two countries. The most important is the Quebrada de Humahuaca. In the central Andes, the tip is broken down into short chains divided by depressions dry solid. I lay rises the highest peak of America, the Aconcagua with 6959 meters of altitude above sea level. To the 36 degrees latitude, the range again to lose altitude. Quaternary glaciation has contributed to the formation of transverse valleys, some of them occupied by large lakes such as Lake Nahuel Huapi, Buenos Aires, Viedma, Argentina, and dominated by high volcanoes that preserve the mountain face.
The plains of Argentina relief cover most of its geography territorail, with extreme variation in composition. To the north, between the Andes and the Paraguay River, lies the Chaco, a vast, subtropical region endorrheic less than 200 meters high, where forests alternate with open spaces and forested areas. Between the Paraná and Uruguay rivers, the northeast, is the Mesopotamia, including the provinces of Misiones, Corrientes and Entre Rios, formed by low hills separated by innumerable rivers, lagoons and estuaries, such as Ibera. Its rainfall is very heavy (1200 - 1600 mm in missions, the highest in the country), although the relief is reduced as low to the south. Temperature and agricultural activities from the area gradually replaced warm tropical crops Misiones.
The Pampa region is not only the country's largest but also the most populous and significant to the national economy. Surprisingly flat, it must travel more than 300 miles from the Atlantic toward the Cordillera de los Andes (west) to reach an altitude of 150 meters.
Small accidents spelling disturb the monotony of Tandil hills and mountains of the south window, Sierras de Cordoba to the west.
Occupies the entire central region of Argentina geography, between the Atlantic coast and the Andean foothills. Can be subdivided into two geographical regions: a wet, including the province of Buenos Aires, and partly the Santa Fe and Cordoba, and then another that surrounds semidry throughout its periphery. The fertile soil of the Pampa is made up of loose deposits and fine silt and loess of Andean origin whose formation dates back to the alternating glacial and interglacial periods.
South of the Colorado River begins Patagonia, whose highlands descend steeply from 1500 and 2000 meters at the foot of the Andes, to a rugged coastline of cliffs and ravines with large (Gulf of St. Marti and San Jorge, Bahia Grande , Valdés Peninsula, Cape Three Points, etc). These appear Patagonian plateaus cut by deep canyons where rivers run from the Andes.
The great extension in the Geography of Argentina to latitude (between 22 º and 52.5 º), the differences in elevation from east to west, the action of the winds (warm the NMorte and cold of the West and South), and moderating influence of the Atlantic, allowing a wide range of climates. Both temperature and rainfall gradually decrease as one moves from East to West and from North to South, giving all types intermediate between the tropical climate of Missions and the highlands of southern Patagonia, completely covered by snow in winter, the whole central region has a temperate climate.
The hydrography of Argentina is also variable in relief. Silver River will lead to the two country's major rivers, the Parana and Uruguay. Both have their origin in the mountains of Brazil, and his regime is determined by the tropical rains collect in its upper course through its major tributaries. At the confluence of the Parana and Iguazu Falls are the waterfalls, great semicircle of 2700 meters with 275 jumps and a drop of 70 meters. Two other important tributaries of the Paraná are the Pilcomayo and Paraguay, which define the border between Paraguay and Argentina.
The flow of the rivers of the Atlantic Basin decreases towards the south, and below the Black River, only one, the Holy Cross, has a continuous flow, The Black is the most important rivers in Patagonia. Formed by the union of the Neuquén and Limay, runs through a wide valley to watering and fertilizing, making it one of the main growing areas of the country (fruit, horticulture). The rivers of the interior side are less important, although some, such as the call has Desaguadero (San Juan, Mendoza, Diamente, Tunuyan Atuel) decisively contribute then their fruit, wine and industrial sector adjacent to the Cordillera of the Andes. As for the Pacific slope, its importance is negligible, since, although born in Argentina (Futaleufu, Manso, Carrenleufú), the usable part of its course runs through Chilean territory.
